JPH0673707B2 - How to replace turret punching press machine - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold exchanging method for exchanging a mold between a storage device and a turret punching press machine by an exchanging device.

2. Description of the Related Art In recent years, with the progress of technology, it has become possible to perform punching of a complex shape on a work. When performing this punching process with a well-known turret punching press machine, it is necessary to mount various types of dies on the radial outer side of the turret table. There was a limit to the number of molds that could be installed. For this reason, when it is not possible to perform punching with a mold that is always mounted, an operator sequentially takes out a plurality of unnecessary molds one by one from the turret table, and, on the other hand, selects them from the storage table. A plurality of molds were taken out and attached one by one to the turret table, and the molds were exchanged.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in such a case, since the mold is directly replaced by an operator, a large amount of time is required for the replacement work, and the operation rate of the turret punching press machine becomes low. There was a problem.

Means for Solving Problems Such problems are stored in the storage device 21, and a plurality of molds 41 and 61 are attached to each of the storage devices 21.
The desired upper and lower pallets 38, 39 from among the lower pallets 38, 39
And the storage device 36 of the storage device 21 storing the upper and lower pallets 38, 39 selected as desired are moved, and the upper and lower pallets 38, 39 are replaced by the exchange device 87.
To reach the take-out position,
Turret punching press machine 86 upper and lower pallet substrate 16
It is placed on 4, 165 and has multiple molds 41 and 61 attached to it, respectively, and it is no longer needed from the lower pallets 38 and 39. A predetermined position at which the turret table 162 of the turret punching press machine 86 on which the upper and lower pallets 38 and 39 selected as described above are rotated and the upper and lower pallets 38 and 39 are taken out by the exchange device 87. To reach
The upper and lower pallets 38, 39 selected by the storage device 21 and the turret punching press 86, respectively, are grasped by one exchanging device 87 and taken out at the same time, and the desired upper and lower pallets 39, 39 become unnecessary. Up and down pallet
A step of rotating the exchanging device 87 while holding 38, 39, and facing the desired upper and lower pallets 38, 39 to the turret boards 164, 165, and the unnecessary upper and lower pallets 38, 39 to the storage body 36; And a step of supplying the desired upper and lower pallets 38 and 39 to the opposing turret substrates 164 and 165 by the exchanging device 87, and the unnecessary upper and lower pallets 38 and 39 to the opposing storage bodies 36 at the same time, respectively. It can be solved by

The working turret punching press machine 86 is equipped with a large number of molds 41 and 61.When replacing the predetermined molds 41 and 61 of these, first store them in the storage device 21. After selecting the desired upper and lower pallets 38, 39 from among the multiple sets of upper and lower pallets 38, 39, the container 36 of the storage device 21 is moved to select the selected upper and lower pallets 38, 39. Reach the eject position. Next, after the upper pallets 38, 39 placed on the turret punching press machine 86 are no longer needed, and the lower pallets 38, 39 are selected, the turret table 162 of the turret punching press machine 86 is set. By rotating the upper and lower unnecessary pallets 38, 39 to a predetermined position, the unnecessary pallets 38, 39 are rotated. Next, after the upper and lower pallets 38, 39 selected by the storage device 21 and the turret punching press machine 86 are gripped by one exchanging device 87 and taken out at the same time, the upper and lower pallets 38, 39 are gripped. While still rotating, swing the exchanging device 87 to
The turret boards 164 and 165 are made to face 8 and 39, and the unnecessary upper and lower pallets 38 and 39 are made to face the storage body 36. Then the exchange device 87
The upper and lower pallets 38, 39 desired by the turret boards 164, 165 facing each other are no longer needed.
Are simultaneously supplied to the opposing storage bodies 36. In this way, the dies 41 and 61 are exchanged.
Since it is done by the exchange device 87 of the table, the installation space can be small, and moreover, the transfer work between these devices is unnecessary as compared with the case where a plurality of exchange devices are used, and the work efficiency is improved. Can be made. Moreover, by the exchanging device 87, the upper and lower pallets 38,
39 are collectively taken out from the storage device 21 and the turret punching press machine 86 at the same time, and then, they are simultaneously supplied to the turret punching press machine 86 and the storage device 21 at the same time. The work efficiency can be improved in comparison. Furthermore, since the replacement work of the upper and lower pallets 38, 39 is performed by a simple turning motion of the replacement device 87, it is possible to improve the work efficiency as compared with the case of performing a combination of a plurality of linear motions. .

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

In FIGS. 1, 2, and 3, reference numeral 21 denotes a storage device that is installed on a floor surface 22 and stores a plurality of pallets.
21 has a pedestal 23 in which a control mechanism is incorporated. An upright support shaft 24 is fixed to the upper surface of the pedestal 23, and a cylindrical rotation shaft 26 is rotatably supported by the support shaft 24 via a bearing 25 about a vertical axis. Plates 29 orthogonal to the arms 27 and 28 are attached to the outer ends of a plurality of radially extending arms 27 and 28 having inner ends attached to the upper and lower portions of the rotary shaft 26, and both side ends of these plates 29 are attached. Is connected to the adjacent plate 29 and has a hexagonal column shape as a whole. The rotating shaft 26, the arms 27 and 28, and the plate 29 described above constitute a rotating body 30 that can rotate about a vertical axis as a whole. A bracket 31 and a guide rail 32 extending in the vertical direction are fixed to each of the plates 29 located at the radiation outer end of the rotating body 30, and the bracket 31 and the guide rail 32 constitute a plurality of supporting portions 33 as a whole. is doing. The plurality of support portions 33 are equidistant from each other in the rotation direction (circumferential direction) of the rotating body 30. A storage body 36 is supported by each support portion 33 so as to be able to move up and down, and the storage body 36 has a plurality of horizontal shelves 37 vertically separated from each other on the outer end side thereof. On these shelves 37, an upper pallet 38 and a lower pallet 39 of a turret punching press machine described later are held. These upper and lower pallets 38, 39 form a pair in the upper and lower parts, and are individually placed on the adjacent upper and lower shelves 37.

As shown in FIGS. 4, 5 and 6, the upper pallet 38 includes a substantially arcuate pallet body 40, a hollow punch guide 42 having a lower end portion protruding from a lower surface of the pallet body 40, and a pallet body 40.
A plurality of guide bolts 47 screwed in, a receiving washer 48 inserted with the guide bolts 47 so as to be movable along the guide bolt 47, and a receiving washer 48 interposed between the receiving washer 48 and the pallet body 40. And a second spring 49 having a small spring constant for urging the spring toward a flange 43, which will be described later.
A plurality of upper molds 41 of a turret punching press as tools are attached to the pallet body 40 so as to be separated from each other in the longitudinal direction. Then, these upper dies 41 cooperate with the lower dies that make a pair to perform punching of different shapes. These upper molds 41 have substantially the same structure, and are provided between a hollow work retainer 44 having a flange 43 slidably inserted in the punch guide 42 and a flange 43 slidably inserted in the work retainer 44. First spring with large spring constant
A punch 46 having 45 interposed therein is provided.

On the other hand, as shown in FIGS. 7, 8, 9, and 10, the lower pallet 39 has a pallet body 60 having substantially the same shape as the pallet body 40, and a pedestal 63 having a stepped hole 62 inserted and fixed in the pallet body 60.
And are equipped with. A plurality of lower molds 61 of a turret punching press machine as tools are attached to the pallet body 60 so as to be separated from each other in the longitudinal direction. Each lower mold 61
Is composed of a die 64 which is housed in a pedestal 63 and into which the punch 46 is inserted when a hole is opened.

Referring again to FIGS. 1, 2, and 3, reference numeral 66 denotes an external gear fixed to the rotary shaft 26 and meshing with the external gear 67. The external gear 67 is attached to the output shaft 68 of the motor 69 fixed to the mount 23. There is. A cam ring 70 as shown in FIGS. 1 and 11 is fixed to the rotary shaft 26 just below the external gear 66.
Notches 71 are formed on the outer periphery of the same number as the support portions 33 at equal angles. In addition, the air cylinder is not
72 is attached, and the tip of the piston rod 73 of this air cylinder 72 can be fitted into the notch 71. The external gears 66, 67 and the motor 69 described above constitute a rotating means 74 for rotating the rotating body 30 about a vertical axis as a whole, and the cam ring 70 and the air cylinder 72 as a whole bring the rotating body 30 to a predetermined rotation position. Positioning means 75 for positioning and fixing is configured. Again, as shown in FIGS. 1, 2, and 3, when the rotary body 30 is positioned by the positioning means 75, the storage body 36 is located immediately below the storage body 36 located at a predetermined rotation position.
Elevating means 77 for elevating and lowering only the chisel is provided. This lifting means 77 is a vertical upper cylinder attached to the mount 23.
78, and a lower cylinder 80 fixed to the upper cylinder 78 and having a tip of its piston rod 79 connected to the bottom plate of the pedestal 23. The upper and lower cylinders 78, 80 are operated to operate the piston rod 81. , 79 project the container 36 located at the predetermined rotation position.

Reference numeral 86 is a turret punching press machine, and between the turret punching press machine 86 and the storage device 21, an exchange device 87 for exchanging the upper pallet 38 and the lower pallet 39 therebetween is installed. The exchanging device 87 has a pair of guide rails 88 laid on the floor surface 22 orthogonal to a straight line connecting the storage device 21 and the turret punching press machine 86, and these guide rails 88 are provided on the guide rails 88. A movable base 89 that can move along is supported. A control device is built in the moving base 89, and an upright support shaft 90 is fixed to the upper surface thereof. A cylindrical rotary shaft 92 is rotatably supported on the support shaft 90 via a bearing 91, and a rectangular horizontal swing frame is provided on the upper surface of the rotary shaft 92.
93 is attached. A pair of parallel guide rails 94 are laid on the revolving frame 93, and two moving bases 95 and 96 are movably supported on the guide rails 94. 97 and 98 are air cylinders attached to the swivel frame 93 and parallel to the guide rails 94.
The tips of the piston rods 99 and 100 of 97 and 98 are the moving base 9
It is connected to 5 and 96 respectively. Upright guide rails 101 are fixed to the respective moving bases 95 and 96, and these guide rails 101 are, as shown in FIGS.
The upper bracket 102 and the lower bracket 103 are respectively supported so as to be able to move up and down. An air cylinder 104 is fixed to the upper end of each of the moving bases 95 and 96.
A vertical connecting rod 106 is connected to the piston rod 105 of 04. Each connecting rod 106 penetrates the upper bracket 102 and the lower bracket 103, and the upper bracket 102 is sandwiched between the stoppers 107 and 108 and fixed to the connecting rod 106. On the other hand, the lower bracket 103 is attached to the connecting rod 106 and is arranged between the stoppers 109 and 110 with a distance therebetween which is slightly larger than the thickness of the lower bracket 103.
The lower bracket 103 can move between the stoppers 109 and 110 while being guided by the connecting rod 106. Each moving stand 9
A restriction block 111 is fixed to the lower end portions of the reference numerals 5, 96, and when the lower bracket 103 abuts on the restriction block 111, the lowering of the lower bracket 103 is restricted. Each upper and lower bracket 1
As shown in FIGS. 1, 3, 12, 13, 14, and 15 on the upper surfaces of 02 and 103, guide rails 116 and 117 parallel to the guide rail 88 are provided.
And a pair of upper and lower grippers 118 and 119 spaced apart from each other are movably supported on the guide rails 116 and 117, respectively. Reference numerals 120 and 121 denote air cylinders attached to the upper and lower brackets 102 and 103, and the tips of piston rods 122 and 123 of these air cylinders 120 and 121 are connected to one of the upper and lower grippers 118 and 119. .
Further, reference numerals 124 and 125 denote revolving arms rotatably supported by the upper and lower brackets 102 and 103, respectively, and one end of each of the revolving arms 124 and 125 is connected to one of the upper and lower grippers 118 and 119. A second link 12 having first links 126 and 127 connected to the other upper and lower grippers 118 and 119 at the other ends.
8,129 are connected. As a result, the air cylinder 12
When 0 and 121 are activated, the pair of upper and lower grippers 118 and 119 move toward and away from each other. Two semicircular recesses 130 are formed on the inner ends of the upper and lower grippers 118 and 119 that face each other.

Referring again to FIGS. 4, 5 and 6, two lift pins 135 having a pair of flanges are attached to both ends of the pallet body 40, and the upper grips 118 approach each other on the lift pins 135 to form a recess 130. When mated,
As shown in FIG. 3, the upper pallet 38 is gripped by the upper gripper 118. Further, the pallet body 40 near the lift pins 135 has an edge scraped off to form an inclined surface 136.
Further, in FIGS. 7, 8, 9, and 10, angular grooves 138 extending in the width direction are formed on both end surfaces of the pallet body 60, and
The pallet body 60 has two ends that penetrate the square groove 138.
When a book-like lift pin 139 is fixed and the lower grippers 119 come close to each other and the recesses 130 are fitted into these lift pins 139, the lower pallet 39 is gripped by the lower gripper 119. 140
Is an inclined surface formed on the pallet body 60 near the lift pins 139.

As described above, in this embodiment, the upper and lower pallets 38 and 39 are collectively grasped, and the upper and lower grasping tools 118 and 119 are provided on the revolving frame 93 that revolves around the vertical axis 180 degrees apart. The upper and lower grippers 118 and 119 are stored in the storage device 21, and the upper and lower pallets 38 and 39 and the turret punching press 86 are no longer needed, and the lower pallets 38 and 39 can be simultaneously gripped. . Again in FIG. 1, the external gear 146 meshing with the external gear 145 is fixed to the rotary shaft 92,
This external gear 145 is a motor 147 mounted on the moving base 89.
It is fixed to the output shaft 148. A cam ring 149 is fixed to the rotary shaft 92 immediately below the external gear 146, and two notches 150 separated by 180 degrees are provided on the outer circumference of the cam ring 149.
Are formed. An air cylinder 151 is attached to the upper surface of the moving base 89, and the tip of the piston rod 152 of the air cylinder 151 can be fitted into the notch 150. The aforementioned external gears 145 and 146 and the motor 147 as a whole constitute a turning means 153 for turning the turning frame 93 around the vertical axis, and the cam ring 149 and the air cylinder 15
1 constitutes a positioning means 154 for positioning the revolving frame 93 at a predetermined revolving position as a whole.

Referring to FIGS. 1, 2, 3, 16, 17, and 18, the turret punching press machine 86 has a pedestal 161 installed on the floor surface 22, and the pedestal 161 has a fan-shaped turret table 162.
Is rotatably supported about a vertical turret shaft 163. The turret table 162 has a horizontal upper turret substrate 164 and a lower turret substrate 165 provided directly below the upper turret substrate 164 and parallel to the upper turret substrate 164, and outer edge portions of the upper turret substrate 164 and the lower turret substrate 165. In this case, a large number of lower molds 166 are mounted at regular intervals in the circumferential direction after being constantly mounted. A pair of side stoppers 16 having the same spacing as the length of the upper pallet 38 are provided at the outer edge portion of the upper turret board 164 near the exchanging device 87.
7 is attached. Further, on the upper turret board 164 between the side stoppers 167, a pair of positioning bodies 168 for abutting the inner surface of the upper pallet 38 for positioning are attached. A hydraulic cylinder 169 is connected to the upper turret board 164 and extends in the radial direction. The piston rod 170 of the hydraulic cylinder 169 has a piston rod 170 at the end thereof.
An arm 171 orthogonal to 170 is fixed. This arm
Claw levers 173 are connected to both ends of 171 via pins 172, and these claw levers 173 are slidably accommodated in a groove 174 formed on the upper surface of the upper turret board 164, and also by the side stoppers 167. It is locked out. A pawl 175 capable of contacting the inclined surface 136 of the upper pallet 38 is formed at the tip of each pawl lever 173, and the piston rod 170 of the hydraulic cylinder 169 is retracted so that the pawl 175 is moved to the inclined surface 136 of the upper pallet 38.
When the upper pallet 38 is brought into contact with the positioning body 168,
It is pressed against and positioned and fixed. The side stopper 167, the positioning body 168, the hydraulic cylinder 169, the arm 171, and the pawl lever 173 described above collectively constitute an attaching / detaching means 176 for detachably attaching the upper pallet 38 to the upper turret board 164 of the turret punching press 86. An attaching / detaching means (not shown) having the same structure as the attaching / detaching means 176 is also provided at the outer edge portion of the lower turret board 165 close to the exchanging device 87. It is detachably attached to 165. Further, reference numeral 181 denotes a work pedestal, on which a work 182 to be perforated, for example, a metal plate is placed in a positionable manner.

Next, the operation of the embodiment of the present invention will be described.

The work 182 currently held on the work cradle 181 is always attached to the turret table 162.
It is assumed that the boring process is performed by 66. In this case, the turret table 162 is rotated to move the desired lower die 166 to the punching position, and then the upper die is hit with a hammer (not shown) of the turret punching press 86. The work of forming a hole of a desired shape in the work 182, and the work of moving the work 182 to a desired position by operating the work cradle 181 and performing positioning, are repeated.
A hole having a desired shape is formed in the work 182.

Next, when processing a hole having a shape that is always attached to the turret table 162 and cannot be formed by the lower mold 166, the upper mold for forming the hole is selected from the storage device 21. And take it out and supply it to the turret punching press machine 86, and it is no longer needed from the turret punching press machine 86, and the lower die is taken out and stored.
Need to feed 21. Such work is performed as follows.

That is, first, a plurality of upper and lower molds 41 and 61, which will be used to form the holes, are attached respectively.
The upper and lower pallets 38, 39 of the set are selected from a large number of upper and lower pallets 38, 39 stored in the storage device 21. Next, after retracting the piston rod 73 of the air cylinder 72, the motor 69 is operated to rotate the external gears 66 and 67 together with the rotating body 30 about the vertical axis, and the selected upper and lower pallets 38 and 39 are rotated. The shelf 37 on which is mounted is moved to just above the lifting means 77. Next, the piston rod 73 of the air cylinder 72
The piston rod 73 and the notch of the cam ring 70.
The rotary body 30 is fitted into 71 and positioned and fixed at a predetermined rotation position. Next, the selected upper and lower pallets 38, 39 are moved to the take-out position, that is, the upper position of the exchanging device 87 and the same height position as the lower grippers 118, 119.
When 8 and 39 are placed on the first and second shelves 37 from the top, it is not necessary to operate the upper and lower cylinders 78 and 80,
Also, when placed on the third and fourth shelves 37,
Piston rod of either upper or lower cylinder 78 or 80
81, 79 are projected, and when the fifth and sixth shelves 37 from the top are placed, the piston rods 81, 79 of both the upper and lower cylinders 78, 80 are projected. As a result, the container 36 is raised to a predetermined position, and the upper and lower pallets 38, 39 reach the take-out position. In this way, selected,
Since only the storage body 36 on which the lower pallets 38, 39 are placed is moved up and down, energy can be saved. At this time, the unnecessary upper and lower pallets 38, 39 fixed to the turret punching press 86 are selected and released from the upper and lower turret substrates 164, 165, respectively. In this case, first, the turret table 162 is rotated until the upper and lower pallets 38, 39 reach predetermined positions facing the upper and lower grippers 118, 119, and then the piston rod 170 of the hydraulic cylinder 169. Project the claws 175 up and down, and the pallets 38, 39
Are separated from the inclined surfaces 136 and 140.

Next, the piston rods 99 and 100 of the air cylinders 97 and 98 are projected, and the moving bases 95 and 96 are moved along the guide rails 94 to approach the storage device 21 and the turret punching press machine 86, respectively. Next, the piston rods 122 and 123 of the air cylinders 120 and 121 are retracted, and the swing arms 124 and 12 are
5, the upper gripping tool 118 and the lower gripping tool 119 are brought close to each other by an equal distance by the linking action of the first links 126, 127 and the second links 128, 129. As a result, the lift pins 135 of the upper pallet 38 are fitted into the recesses 130 of the upper gripping tool 118 and the upper gripping tool 118.
The upper pallet 38 is gripped by the
The lift pin 139 is fitted in the 30 and the lower pallet 39 is gripped by the lower gripping tool 119.

Next, the piston rods 105 of both air cylinders 104 are retracted, and the upper bracket 102 and the lower bracket 103 are simultaneously raised. At this time, the upper bracket 102 is the stopper 1
Since it is fixed to the connecting rod 106 by 07 and 108,
Selected upper pallet 38 and unnecessary upper pallet
38 rises together with the connecting rod 106, and the lower end of the punch guide 42 protruding from the pallet body 40 comes out of the shelf 37 and the upper turret board 164. At this time, the lower bracket 103
Since the distance between stoppers 109 and 110 is greater than the thickness of
The connecting rod 106 rises inside the lower bracket 103, and the lower bracket 103 does not rise while being in contact with the restriction block 111. And the punch guide 42 of the upper pallet 38 is a shelf.
When the stopper 110 comes out of the 37 and the upper turret board 164, the stopper 110 comes into contact with the lower bracket 103, and the lower bracket 103
Is slightly raised together with the upper bracket 102. next,
The piston rods 99, 100 of the air cylinders 97, 98 are retracted so that the selected upper and lower pallets 38, 39 and the unnecessary upper and lower pallets 38, 39 are simultaneously transferred from the storage device 21 and the turret punching press 86. The table is taken out to the exchanging device 87 to improve the efficiency of exchanging work. Next, after retracting the piston rod 152 of the air cylinder 151,
Actuating 147, the external gears 145, 146 and the turning frame 93 are integrally turned 180 degrees around the support shaft 90, and the upper and lower grippers 11
Upper and lower pallets 38, which were simultaneously gripped by 8 and 119,
Rotate 39 by 180 degrees in the horizontal plane. As a result,
Selected upper and lower pallets 38, 39 are upper and lower turret boards
The upper and lower pallets 38 and 39, which are no longer needed, face the empty shelves 37 on which the selected upper and lower pallets 38 and 39 are placed, respectively. To do. Next, project the piston rod 152 of the air cylinder 151, and attach the piston rod 152 to the notch 15 of the cam ring 149.
The swivel frame 93 is positioned and fixed by being inserted into 0. Next, after projecting the piston rods 99, 100 of the air cylinders 97, 98, projecting the piston rod 105 of the air cylinder 104, the upper and lower pallets 38, 39 that are no longer needed The selected upper and lower pallets 38 and 39 are placed on the upper and lower turret substrates 164 and 165, respectively. At this time, although the lower bracket 103 is restricted from descending by the restriction block 111, the connecting rod 106
Since it is possible to continue descending together with the upper bracket 102, even if the punch guide 42 projects from the upper pallet 38, the upper pallet 38 and the lower pallet 39 can be placed at the same time.

Next, the piston rods 122, 1 of both air cylinders 120, 121
23 is projected to separate the upper gripper 118 and the lower gripper 119 from each other so that they are no longer needed and the selected upper pallet 38 and lower pallet 39 are released from gripping. As a result, the selected upper pallet 38, lower pallet 39 and the unnecessary upper pallet 38, lower pallet 39 are simultaneously supplied to the turret punching press 86 and the storage device 21, thus improving the efficiency of replacement work. Further, as described above, since the upper pallet 38 and the lower pallet 39 are collectively taken out and supplied, the efficiency of replacement work is further improved. Next, the piston rods 99 and 100 of the air cylinders 97 and 98 are retracted, and the upper gripper 118 and the lower gripper 119 are returned to their initial positions. At this time, a plurality of upper and lower pallets 38, 39,
Since the lower molds 41 and 61 are attached respectively,
By exchanging the lower pallets 38, 39, a plurality of molds can be exchanged at one time, and the efficiency of the die exchanging work is improved. The dies 41 and 61 are exchanged in this manner. Since this exchange is performed by one exchange device 87 as described above, the installation space for the exchange device 87 may be small, Moreover, compared to the case where a plurality of exchange devices are used, the work of delivering between these devices is unnecessary,
The work efficiency can be improved. Moreover, the exchange device
The storage device 21 and the turret punching press machine that collectively store the upper and lower pallets 38 and 39 at the same time as desired and unnecessary by 87
Take out from 86, then turret punching press machine
Since 86 and the storage device 21 are collectively supplied at the same time, the work efficiency can be improved as compared with the case where they are individually taken out and supplied. Furthermore, since the replacement work of the upper and lower pallets 38, 39 is performed by a simple turning motion of the replacement device 87, it is possible to improve the work efficiency as compared with the case of performing a combination of a plurality of linear motions. .

Next, the raising / lowering means 77 is operated to lower the housing 36 to the lower limit, and the piston rod 170 of the hydraulic cylinder 169 is retracted to bring the claw 175 into contact with the inclined surfaces 136 and 140. As a result, the selected upper pallet 38 and lower pallet 39 are pressed against the positioning body 168, and are regulated from both sides by the side stoppers 167 to be positioned and fixed at predetermined positions.

Next, the turret table 162 is turned to rotate a predetermined upper die 41 and lower die 61 of the upper pallet 38 and the lower pallet 39.
Move to just below the hammer of turret punching press 86. Next, punch the upper die 41 with the hammer.
Hit 46. As a result, first, the second spring 49 is compressed and the work retainer 44, the punch 46, and the washer 48 are integrally lowered, and the work retainer 44 presses the work 182 against the lower die 61. At this time, the first spring 45 is hardly compressed. Then, when the first spring 45 is compressed, the punch
46 is inserted into the die 64 of the lower die 61, and the punch 46 and the die 64 are inserted.
With this, a desired hole is formed in the work 182. Next, the first spring 45 and the second spring 49 are restored and the upper die 41
When the state returns to the initial state, the turret table 162 is rotated to move the upper die 41 and the lower die 61 to be used next to the position just below the hammer to perform the boring process. In this way, the work
A predetermined number of holes are formed in 182, and the boring process is completed.

In this way, the upper and lower pallets 38 and 39 are replaced each time a hole having a shape that is always attached to the turret table 162 and cannot be formed by the lower mold 166 is machined. In addition, the storage device 21, the turret punching press machine 8
6. When cleaning the exchanging device 87, the exchanging device 87 is moved along the guide rail 88 so as to be separated from the storage device 21 and the turret punching press machine 86 to secure a space for cleaning.

In the above-described embodiment, the case where the rotating body 30 has the six support portions 33 has been described, but the number of the support portions 33 may be any number as long as it is two or more. Further, in the present invention, it is not necessary that all the supporting portions support the container. Further, the shelves 37 of the storage unit 36 need only have two or more stages, and further, all of these shelves 37 need not have pallets placed thereon. Further, in the present invention, the elevating means may be, for example, one using a screw shaft, one using a rack or a pinion.

EFFECTS OF THE INVENTION As described above, according to the present invention, the efficiency of mold replacement work is improved, and since the replacement device also performs the work, automation is possible.

[Brief description of drawings]

1 is a partially cutaway front view showing an embodiment of the present invention, FIG. 2 is a schematic overall plan view thereof, FIG. 3 is a plan view thereof, FIG. 4 is a plan view of an upper pallet, and FIG. Is I in FIG.
-I arrow sectional view, FIG. 6 is a II-II arrow sectional view of FIG. 4,
Fig. 7 is a plan view of the lower pallet, and Fig. 8 is III-I in Fig. 7.
II arrow sectional view, FIG. 9 is a IV-IV arrow sectional view of FIG.
FIG. 10 is a view taken along the line V-V in FIG. 7, and FIG. 11 is a line VI-VI in FIG.
Sectional view taken in the direction of the arrow, FIG. 12 is a front view of the vicinity of the moving table, FIG. 13 is a plan view of the vicinity of the moving table, FIG. 14 is a plan view of the vicinity of the gripping tool, and FIG.
Figure is a front view near the gripping tool, Figure 16 is a plan view near the attachment / detachment means of the turret punching press, and Figure 17 is VI in Figure 16.
FIG. 18 is a sectional view taken along the line I-VII in FIG. 18, and FIG. 18 is a sectional view taken along the line VIII-VIII in FIG. 21 …… Storage device, 36 …… Storage unit 38,39 …… Upper and lower pallets 41,61 …… Mold 86 …… Turret punching press machine 87 …… Replacement device, 162 …… Turret table 164,165 …… Upper and lower pallet board

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-58-93523 (JP, A) Actual development Shou 54-12190 (JP, U)

Claims (1)

[Claims] 1. A desired upper / lower pallet 38, 39 is selected from a plurality of sets of upper / lower pallets 38, 39 which are stored in a storage device 21 and each of which has a plurality of molds 41, 61 attached thereto. And a step of moving the storage body 36 of the storage device 21 storing the upper and lower pallets 38, 39 selected as desired, and taking out the upper and lower pallets 38, 39 by the exchange device 87 At the stage of reaching the position, on the turret punching press machine 86, placed on the lower pallet substrate 164, 165, and a plurality of molds 41, 61 are attached to each, from among the lower pallet 38, 39 No longer needed
The step of selecting the lower pallets 38, 39 and the turret table 162 of the turret punching press machine 86 on which the upper and lower pallets 38, 39 selected as unnecessary are mounted.
And a storage device for rotating the upper and lower pallets 38, 39 to reach a predetermined position for taking out by the exchanging device 87.
21 and upper and lower pallets 38 and 39 selected on the turret punching press 86 respectively
The step of gripping with 87 and taking out at the same time, the desired upper and lower pallets 39, 39 and the unnecessary upper and lower pallets 38, 39 are swung while the exchanging device 87 is swung to obtain the desired upper and lower pallets 38, 39. To the turret boards 164 and 165, and the unnecessary upper and lower pallets 38 and 39 to face the storage body 36, and a replacement device.
The desired upper and lower pallets 38, 39 by the 87 on the turret boards 164, 165 facing each other, the upper and lower pallets 38,
A method of exchanging a die for a turret punching press machine, comprising the steps of simultaneously supplying 39 to opposing storage bodies 36, respectively.